Flatfoot passive correction device

Abstract

The present invention discloses a passive correction device for flat feet, including a leg frame fixed on the top of a base by a support rod, a fixing mechanism is arranged below the leg frame, one side of the fixing mechanism drives an elastic pressure roller to swing on one side of the leg frame; a telescopic frame, the upper and lower sides of the telescopic frame are respectively connected to a top frame and a double-ended threaded screw through two groups of sliders and transmission blocks, the telescopic frame drives the top frame and the double-ended threaded screw to move relative to each other, and the top of the top frame is fixed to the fixing mechanism; an electric actuator, the output end of the electric actuator drives the resistance frame assembly and the clamping frame to move on the surface of the base, and the clamping frame is aligned with the limit clamping block in the middle position of the double-ended threaded screw. The present invention can effectively push and pull the feet of different postures, thereby changing the shaping of the feet and legs, thereby assisting in stretching and shortening different muscles, providing a correction basis, and the structure is stable and easy to store, which is suitable for the correction and treatment of flat feet and high arches.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary correction devices, in particular to a passive correction device for flat feet. Background Art

[0002] Flat feet is a common foot problem, which usually refers to the collapse or almost disappearance of the arch of the foot, resulting in the inability to provide adequate support for the foot when standing or walking, which may lead to foot pain, ankle problems and other related health problems. Today, the treatment and correction of flat feet is generally carried out through muscle contraction and expansion, that is, by making some specific movements to stretch the muscles in specific positions of the feet and legs. Specifically, through the up and down force of the toes, the peroneus muscle, the plantar intrinsic muscle, the tibialis posterior tendon and the plantar longus muscle are stretched and stressed, thereby gradually correcting the sole of the foot.

[0003] For this type of correction method, correction treatment is achieved through voluntary force, but different people have obvious differences in toe force control and muscle stretching, which is directly related to obesity or foot bone deformity. As a result, different people actually need different periods of correction treatment through this method, and the correction effect is not obvious. At present, auxiliary correction equipment cannot be adjusted according to different foot sizes, which makes this method of correction have poor practical effect.

[0004] Therefore, how to provide a passive correction device for flat feet is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] One purpose of the present invention is to provide a passive flatfoot correction device, which can effectively assist in stretching the muscles of the feet and legs, provide a better correction basis, and is suitable for use by people of all different body shapes.

[0006] The flat foot passive correction device according to an embodiment of the present invention comprises a leg frame fixed on the top of a base by a support rod, a fixing mechanism is arranged under the leg frame, and one side of the fixing mechanism drives an elastic pressure roller to swing on one side of the leg frame;

[0007] A telescopic frame, wherein the upper and lower sides of the telescopic frame are respectively connected to the top frame and the double-end threaded screw through two sets of sliders and transmission blocks, the telescopic frame drives the top frame and the double-end threaded screw to move relative to each other, and the top of the top frame is fixed to a fixing mechanism;

[0008] An electric actuator, wherein the output end of the electric actuator drives the resistance frame assembly and the clamping frame to move on the surface of the base, and the clamping frame is aligned with the limit clamping block at the middle position of the double-ended threaded screw.

[0009] Furthermore, the fixing mechanism includes two groups of swing frames and telescopic electric cylinders. One side of the two groups of swing frames is movably connected to the two sides of the connecting slide. The middle position of the connecting slide is fixed to the output shaft of the telescopic electric cylinder under the leg frame. The connecting slide slides on the bottom surface of the leg frame through a slide rail, and the other sides of the two groups of swing frames are movably arranged at the two ends of the elastic pressure roller.

[0010] Furthermore, a movable slide groove is provided on the surface of the swing frame, and a movable pin seat is slidably connected inside the movable slide groove. The movable pin seat is fixed above the top frame, and the telescopic electric cylinder is electrically connected to a control switch on one side of the leg frame through a wire.

[0011] Furthermore, a positioning mechanism is provided on the surface of the base near the fixing mechanism, and the positioning mechanism includes a telescopic frame and a driving motor. The output end of the driving motor is transmission-connected to one side of a double-end threaded screw via a gear, and the double-end threaded screw is movably arranged on the surface of the base via a limiting seat. Two groups of transmission blocks are respectively threadedly connected on both sides of the double-end threaded screw, and the transmission directions of the two groups of transmission blocks on the surface of the double-end threaded screw are opposite, and the top of the transmission block is movably connected to the bottom of the telescopic frame.

[0012] Furthermore, the top of the telescopic frame is slidably connected to both sides of the bottom surface of the top frame, and the top frame moves up and down at the bottom of the leg frame through four groups of limit sliding rods. Two groups of movable pin seats are fixedly connected to both sides of the top surface of the top frame, and the driving motor is electrically connected to the control switch through a wire.

[0013] Furthermore, a blocking mechanism is arranged below the fixing mechanism, and the blocking mechanism includes an electric actuator, a resistance frame assembly and a card frame. The output end of the electric actuator directly drives the card frame to move laterally above the base through a connecting rod, and the resistance frame assembly is arranged directly below the movable range of the connecting slide.

[0014] Furthermore, the abutment frame assembly includes two groups of wedge blocks and a blocking frame, and the blocking frame moves up and down on the opposite sides of the base and the leg frame through the wedge blocks. The length of the top surface of the blocking frame is greater than the length of the movable path of the connecting slide.

[0015] Furthermore, two groups of wedge grooves are provided on the bottom surface of the anti-motion frame, and the wedge grooves and the wedge blocks are fitted with each other in a wedge-like manner, and the two groups of wedge blocks are both transmission-connected to the electric actuator.

[0016] Furthermore, one side of the bracket is aligned with a limit block, the limit block is fixed at the middle position of the double-ended threaded screw, the bracket is engaged with the limit block, and the electric actuator is electrically connected to the control switch through a wire.

[0017] Furthermore, a plurality of straps are fixedly connected to the top of the leg frame, scales are provided on both sides of the leg frame near the fixing mechanism, a storage groove is provided on one side of the leg frame, and the elastic pressure roller is engaged with the storage groove.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides a swing frame and movably connects an elastic pressure roller on one side, and a movable slide groove is provided in the middle of the swing frame, and a height limit is performed at a specific position through a movable pin seat. When the telescopic electric cylinder is started, the swing frame can be pulled to one side through the connecting slide, so as to provide a thrust to the sole of the foot, assist in stretching the intrinsic plantar muscles, shorten the peroneal muscles, so that the instep and the calf are in a right angle state, and at this time, the high arch foot can be treated by exerting force through the toes.

[0020] The present invention provides a positioning mechanism, and the telescopic frame is extended by the opposite movement effect of the two sets of transmission blocks below, so that the transmission blocks are driven to move up and down as a whole below the leg frame, and the actual limit height position between the movable pin seat and the swing frame is changed. When the movable pin seat moves downward, the swing frame can be pulled to drive the elastic pressure roller to apply pressure downward, so that the foot can be flush with the leg, so as to assist in shortening the intrinsic plantar muscles and stretching the peroneal muscles. In this way, the correction and treatment of flat feet can be achieved by applying force again.

[0021] The present invention provides a blocking mechanism. After starting, the electric actuator can push the wedge block and the wedge groove to slide relative to each other, change the height position above the blocking frame, and release the restriction on the connecting slide, so that the connecting slide can move normally. Otherwise, it is fixed and locked, so that the elastic pressure roller can provide better pressure to prevent the foot from being compressed and retracted, so that the foot correction work can be in a better posture. At the same time, the bracket is connected with the limit bracket to limit the actual rotation of the double-end threaded screw, so that the height position of the movable pin seat is limited, and stable operation is achieved in the same way. The blocking frame and the limit bracket are controlled to be fixed and fixed respectively, which can effectively change the actual position of the elastic pressure roller in the plane, so that it is suitable for people with different instep sizes.

[0022] The present invention opens a storage groove on one side of the leg frame. Under the control of a control switch, the swing frame can drive the elastic pressure roller to move toward the inside of the storage groove after retracting until it is completely docked, thereby achieving the purpose of storage, facilitating overall storage and effectively preventing the swing frame from being damaged in the transmission structure due to lateral force when the device is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1This is a schematic diagram of the overall structure of the flat foot passive correction device proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the transmission structure of the swing frame of the flat foot passive correction device proposed by the present invention.

[0026] Figure 3 This is a half-section schematic diagram of the installation connection structure of the flat foot passive correction device proposed by the present invention.

[0027] Figure 4 This is a schematic diagram of the disassembled fixing mechanism of the flat foot passive correction device proposed by the present invention.

[0028] Figure 5 This is a schematic diagram of the overall connection of the positioning mechanism of the flat foot passive correction device proposed by the present invention.

[0029] Figure 6 This is a schematic diagram of the connection of the blocking mechanism of the flat foot passive correction device proposed by the present invention.

[0030] Figure 7 This is a diagram showing the force principle of muscle correction in the flatfoot passive correction device proposed by the present invention.

[0031] In the figure: 1. base; 2. leg frame; 3. control switch; 4. storage slot; 5. fixing mechanism; 6. elastic pressure roller; 7. adjustment mechanism; 8. blocking mechanism;

[0032] 51. Swing frame; 52. Connecting slide; 53. Telescopic electric cylinder; 54. Movable slide; 55. Movable pin seat; 71. Telescopic frame; 72. Top frame; 73. Transmission block; 74. Double-ended threaded screw; 75. Driving motor; 81. Electric actuator; 82. Resistance frame assembly; 83. Clamp frame; 84. Limit clamp block;

[0033] 821, wedge block; 822, wedge groove; 823, stop frame. DETAILED DESCRIPTION

[0034] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0035] refer to Figure 1, including a leg frame 2 fixed above the base 1 by a support rod, a fixing mechanism 5 is arranged under the leg frame 2, one side of the fixing mechanism 5 drives the elastic pressure roller 6 to swing on one side of the leg frame 2; a telescopic frame 71, the upper and lower sides of the telescopic frame 71 are respectively connected to the top frame 72 and the double-ended threaded screw 74 through two sets of sliders and transmission blocks 73, the telescopic frame 71 drives the top frame 72 and the double-ended threaded screw 74 to move relative to each other, and the top of the top frame 72 is fixed to the fixing mechanism 5; an electric actuator 81, the output end of the electric actuator 81 drives the resistance frame assembly 82 and the clamping frame 83 to move on the surface of the base 1, and the clamping frame 83 is aligned with the limit clamping block 84 in the middle position of the double-ended threaded screw 74.

[0036] In the present embodiment, the fixing mechanism 5 drives the elastic pressure roller 6 to swing normally left and right on one side of the leg frame 2, and after the telescopic frame 71 is extended and retracted, the actual height of the elastic pressure roller 6 controlled by the fixing mechanism 5 to move left and right can be changed, thereby changing the actual force position on the sole or the instep of the foot. The force position and direction of the foot are determined specifically according to flat feet or high arches. After the fixing mechanism 5 and the positioning mechanism 7 drive the elastic pressure roller 6 to press the foot, toe force correction training can be performed normally. The driving of the electric actuator 81 can stabilize the fixing mechanism 5 or the positioning mechanism 7 to prevent the elastic pressure roller 6 from being stressed and causing the transmission structure to be damaged, thereby improving the reliability of the device.

[0037] refer to Figure 2 , Figure 4 and Figure 6 The fixing mechanism 5 includes two sets of swing frames 51 and telescopic electric cylinders 53. One side of the two sets of swing frames 51 is movably connected to the two sides of the connecting slide 52. The middle position of the connecting slide 52 is fixed to the output shaft of the telescopic electric cylinder 53 below the leg frame 2. The connecting slide 52 slides on the bottom surface of the leg frame 2 through a slide rail. The other sides of the two sets of swing frames 51 are movably arranged at the two ends of the elastic pressure roller 6. The surface of the swing frame 51 is provided with a movable slide groove 54. The movable slide groove 54 is slidably connected to the movable pin seat 55. The movable pin seat 55 is fixed above the top frame 72. The telescopic electric cylinder 53 is electrically connected to the control switch 3 on one side of the leg frame 2 through a wire.

[0038] In the present embodiment, after being started, the telescopic electric cylinder 53 can drive the connecting slide 52 to move on the bottom surface of the leg frame 2, thereby driving the swing frame 51 to move laterally, and a movable slide groove 54 is provided in the middle of the swing frame 51, and a movable pin seat 55 is slidingly arranged on the inner side of the movable slide groove 54, and the height of the movable pin seat 55 is controlled by the positioning mechanism 7. In this way, after the swing frame 51 is pulled by the connecting slide 52 on one side, the other side of the swing frame 51 will swing during the movement with the limiting position of the movable pin seat 55 as the limiting point, thereby realizing the operation of tightening the foot, and by controlling the height of the movable pin seat 55 by the positioning mechanism 7 to change the limiting position, the actual position of the elastic pressure roller 6 can be changed, thereby adapting to the use of people with different foot sizes.

[0039] refer to Figure 2 , Figure 5 and Figure 6 The position adjustment mechanism 7 is arranged near the fixing mechanism 5 on the surface of the base 1. The position adjustment mechanism 7 includes a telescopic frame 71 and a driving motor 75. The output end of the driving motor 75 is connected to one side of a double-end threaded screw 74 through a gear. The double-end threaded screw 74 is movably arranged on the surface of the base 1 through a limit seat. Two groups of transmission blocks 73 are respectively threadedly connected on both sides of the double-end threaded screw 74, and the transmission directions of the two groups of transmission blocks 73 on the surface of the double-end threaded screw 74 are opposite. The top of the transmission block 73 is movably connected to the bottom of the telescopic frame 71. The top of the telescopic frame 71 is slidably connected to both sides of the bottom surface of the top frame 72. The top frame 72 moves up and down at the bottom of the leg frame 2 through four groups of limit sliding rods. Two groups of movable pin seats 55 are respectively fixedly connected on both sides of the top surface of the top frame 72. The driving motor 75 is electrically connected to the control switch 3 through a wire.

[0040] In this embodiment, after the driving motor 75 is started, the double-ended threaded screw 74 can be directly driven to rotate above the base 1 through the gear, and the two sides of the double-ended threaded screw 74 are threadedly connected to the transmission block 73 and the movement direction is opposite, so that the transmission block 73 can drive the telescopic frame 71 to extend during the relative movement, thereby pushing the top frame 72 slidably connected above the telescopic frame 71, and the top frame 72 can pull the swing frame 51 to change its height through the movable pin seat 55 during the up and down movement under force, thereby changing the actual position of the elastic pressure roller 6, and the overall coordination with the fixing mechanism 5 can enable the elastic pressure roller 6 to have the effect of moving at various positions in a plane, thereby improving the flexibility of the elastic pressure roller 6, making it easy to place and push and pull the foot. Meet the correction treatment of high arch foot or flat foot.

[0041] refer to Figure 2 and Figure 6 , a blocking mechanism 8 is arranged below the fixing mechanism 5, and the blocking mechanism 8 includes an electric actuator 81, a blocking frame assembly 82 and a card frame 83. The output end of the electric actuator 81 directly drives the card frame 83 to move horizontally above the base 1 through a connecting rod, and the blocking frame assembly 82 is arranged directly below the range of motion of the connecting slide 52. The blocking frame assembly 82 includes two groups of wedge blocks 821 and a blocking frame 823. The blocking frame 823 moves up and down on the opposite sides of the base 1 and the leg frame 2 through the wedge blocks 821, and the top surface length of the blocking frame 823 is greater than the length of the moving path of the connecting slide 52. Two groups of wedge grooves 822 are provided on the bottom surface of the blocking frame 823, and the wedge grooves 822 and the wedge blocks 821 are wedge-fitted with each other, and the two groups of wedge blocks 821 are both connected to the electric actuator 81 in a transmission manner. One side of the bracket 83 is aligned with the limit block 84 , the limit block 84 is fixed at the middle position of the double-ended threaded screw 74 , the bracket 83 is engaged with the limit block 84 , and the electric actuator 81 is electrically connected to the control switch 3 through a wire.

[0042] The cam 821 is engaged with the support frame 81 and the support frame 83 is engaged with the support frame 81. The cam 821 is engaged with the support frame 81 and the support frame 83 is engaged with the support frame 81. The cam 821 is engaged with the support frame 81 and the support frame 83 is engaged with the support frame 81.

[0043] refer to Figure 1 and Figure 3 The top of the leg frame 2 is fixedly connected to multiple groups of straps, and scales are set on both sides of the leg frame 2 near the fixing mechanism 5. A storage groove 4 is opened on one side of the leg frame 2, and the elastic pressure roller 6 is clamped with the storage groove 4.

[0044] In this embodiment, in addition to driving the elastic pressure roller 6 to move to provide different placement angles, the fixing mechanism 5 can achieve the docking operation between the elastic pressure roller 6 and the storage groove 4 on one side of the leg frame 2 after continuously pulling the elastic pressure roller 6 to move, thereby providing a side protection effect for the swing frame 51, thereby facilitating actual storage operations.

[0045] Working principle: first, place the legs on top of the leg frame 2 and stabilize them with straps, then control the telescopic electric cylinder 53 in the fixing mechanism 5 to drive through the control switch 3, the telescopic electric cylinder 53 pulls the connecting slide 52 to move under the leg frame 2, and at the same time pulls one side of the swing frame 51 to move, a movable slide groove 54 is provided on the entire surface of the swing frame 51, and a movable pin seat 55 arranged on the inner side of the movable slide groove 54 is fixed to the top frame 72 in the positioning mechanism 7, so that the swing frame 51 as a whole is restricted by the height movement of the movable pin seat 55, so that the elastic pressure roller 6 on the other side of the swing frame 51 can move laterally, and after the driving motor 75 on the base 1 is driven, the double-ended threaded screw 74 is forced to rotate so that the two sets of transmission blocks 73 move in opposite directions, and the telescopic frame 71 is stretched as a whole, pushing or pulling back the top frame 72 to move, changing the actual The actual height is such that the elastic pressure roller 6 can change the actual position, thereby aligning the sole or instep of the foot, and then driving the telescopic electric cylinder 53 or the driving motor 75 to drive the elastic pressure roller 6 to push and pull the foot, and then the electric actuator 81 in the blocking mechanism 8 is driven to drive the resistance frame assembly 82 and the clamping frame 83 to move. After the clamping frame 83 is docked with the limiting clamping block 84, the rotation effect of the double-ended threaded screw 74 is limited, so that the height position of the movable pin seat 55 is fixed, and after the wedge block 821 moves, a wedge-like movement occurs between the wedge groove 822 below the blocking frame 823 and the wedge block 821, and the blocking frame 823 can move downward as a whole, loosening the restriction on the connecting slide 52, so that it is convenient for the telescopic electric cylinder 53 to pull the elastic pressure roller 6 to achieve the tightening operation, which is suitable for the treatment of high arch foot, and then the foot appears like Figure 7 The leg frame 2 is adjusted to a certain posture to assist in stretching the muscles in various positions, and then the toes are used to exert force to correct the problem of flat feet or high arches. When the correction training is completed, the continuous pulling effect of the telescopic electric cylinder 53 can drive the elastic pressure roller 6 to align and dock with the storage groove 4 on one side of the leg frame 2, thereby protecting the swing frame 51 and preventing the swing frame 51 from being damaged by lateral force.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A passive flat foot correction device, characterized in that: It comprises a leg frame (2) fixed on the top of a base (1) by a support rod, a fixing mechanism (5) is arranged below the leg frame (2), and one side of the fixing mechanism (5) drives an elastic pressure roller (6) to swing on one side of the leg frame (2); A telescopic frame (71), wherein the upper and lower sides of the telescopic frame (71) are respectively connected to the top frame (72) and the double-end threaded lead screw (74) through two sets of sliders and a transmission block (73); the telescopic frame (71) drives the top frame (72) and the double-end threaded lead screw (74) to move relative to each other; and the top of the top frame (72) is fixed to a fixing mechanism (5); An electric actuator (81), wherein the output end of the electric actuator (81) drives the abutment frame assembly (82) and the clamping frame (83) to move on the surface of the base (1), and the clamping frame (83) is aligned with a limit clamping block (84) at the middle position of the double-ended threaded lead screw (74); The fixing mechanism (5) comprises two groups of swing frames (51) and telescopic electric cylinders (53). One side of the two groups of swing frames (51) is movably connected to the two sides of the connecting slide (52). The middle position of the connecting slide (52) is fixed to the output shaft of the telescopic electric cylinder (53) below the leg frame (2). The connecting slide (52) slides on the bottom surface of the leg frame (2) through a slide rail. The other sides of the two groups of swing frames (51) are movably arranged at the two ends of the elastic pressure roller (6). The surface of the swing frame (51) is provided with a movable slide groove (54). The movable slide groove (54) is slidably connected to a movable pin seat (55). The movable pin seat (55) is fixed above the top frame (72). The telescopic electric cylinder (53) is electrically connected to the control switch (3) on one side of the leg frame (2) through a wire.

2. The flat foot passive correction device according to claim 1, characterized in that: A positioning mechanism (7) is arranged on the surface of the base (1) near the fixing mechanism (5), and the positioning mechanism (7) comprises a telescopic frame (71) and a driving motor (75). The output end of the driving motor (75) is transmission-connected to one side of a double-end threaded lead screw (74) via a gear. The double-end threaded lead screw (74) is movably arranged on the surface of the base (1) via a limiting seat. Two groups of transmission blocks (73) are respectively threadedly connected on both sides of the double-end threaded lead screw (74), and the transmission directions of the two groups of transmission blocks (73) on the surface of the double-end threaded lead screw (74) are opposite. The top of the transmission block (73) is movably connected to the bottom of the telescopic frame (71).

3. The flat foot passive correction device according to claim 2, characterized in that: The top of the telescopic frame (71) is slidably connected to both sides of the bottom surface of the top frame (72); the top frame (72) moves up and down at the bottom of the leg frame (2) through four groups of limit sliding rods; two groups of movable pin seats (55) are fixedly connected to both sides of the top surface of the top frame (72); and the driving motor (75) is electrically connected to the control switch (3) through a wire.

4. The flat foot passive correction device according to claim 1, characterized in that: A blocking mechanism (8) is arranged below the fixing mechanism (5), and the blocking mechanism (8) comprises an electric actuator (81), a blocking frame assembly (82) and a clamping frame (83). The output end of the electric actuator (81) directly drives the clamping frame (83) to move horizontally above the base (1) through a connecting rod, and the blocking frame assembly (82) is arranged directly below the movable range of the connecting slide (52).

5. The flat foot passive correction device according to claim 4, characterized in that: The abutment frame assembly (82) comprises two groups of wedge blocks (821) and a blocking frame (823). The blocking frame (823) moves up and down on the opposite sides of the base (1) and the leg frame (2) through the wedge blocks (821). The top surface length of the blocking frame (823) is greater than the moving path length of the connecting slide (52).

6. The flat foot passive correction device according to claim 5, characterized in that: The bottom surface of the anti-motion frame (823) is provided with two groups of wedge grooves (822), and the wedge grooves (822) and the wedge blocks (821) are mutually fitted in a wedge-like manner, and the two groups of wedge blocks (821) are both drivingly connected to the electric actuator (81).

7. The flat foot passive correction device according to claim 4, characterized in that: One side of the bracket (83) is aligned with a limit block (84), the limit block (84) is fixed at a middle position of the double-ended threaded lead screw (74), the bracket (83) is engaged with the limit block (84), and the electric actuator (81) is electrically connected to the control switch (3) via a wire.

8. The flatfoot passive correction device according to claim 1, characterized in that: The top of the leg frame (2) is fixedly connected to a plurality of groups of straps, and scales are provided on both sides of the leg frame (2) near the fixing mechanism (5). A storage groove (4) is provided on one side of the leg frame (2), and the elastic pressure roller (6) is snap-fitted to the storage groove (4).

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